Lots here, and lots not. Some gurus maintain their balance so perfectly that they can overcome extreme cold, and some Buddhist "mummies" appear almost to be in a trance-like state, somewhere on the border between life and death, even after centuries. But I typically agree with you that the people running around claiming to be gurus are most likely to be tricksters. I have come across one guru, however, who -- though not perfect -- has done what I consider to be psychological "miracles," just by knowing people and being able to see their true selves. His advice to "observe yourself without judgement" is the best I've ever received. Very difficult to do, of course, but worth the effort. I wish you the best of luck in your current situation. Peace!